Juliano Rizzo and Thai Duong discovered a weakness in the TLS/SSLprotocol when using compression. This side channel attack, dubbed'CRIME', allows eavesdroppers to gather information to recover theoriginal plaintext in the protocol. This update to nginx disablesSSL compression.

For the stable distribution (squeeze), this problem has been fixed inversion 0.7.67-3+squeeze3.

For the testing distribution (wheezy), and unstable distribution (sid),this problem has been fixed in version 1.1.16-1.

We recommend that you upgrade your nginx packages.

Further information about Debian Security Advisories, how to applythese updates to your system and frequently asked questions can befound at: http://www.debian.org/security/

Several vulnerabilities were discovered in the TLS/SSL protocol. Thisupdate addresses these protocol vulnerabilities in lighttpd.

CVE-2009-3555

Marsh Ray, Steve Dispensa, and Martin Rex discovered that the TLS and SSLv3 protocols do not properly associate renegotiation handshakes with an existing connection, which allows man-in-the-middle attackers to insert data into HTTPS sessions. This issue is solved in lighttpd by disabling client initiated renegotiation by default.

Those users that do actually need such renegotiations, can reenable them via the new 'ssl.disable-client-renegotiation' parameter.

CVE-2012-4929

Juliano Rizzo and Thai Duong discovered a weakness in the TLS/SSL protocol when using compression. This side channel attack, dubbed 'CRIME', allows eavesdroppers to gather information to recover the original plaintext in the protocol. This update disables compression.

For the stable distribution (squeeze), these problems have been fixed inversion 1.4.28-2+squeeze1.2.

For the testing distribution (wheezy), and the unstable distribution (sid)these problems have been fixed in version 1.4.30-1.

We recommend that you upgrade your lighttpd packages.

Further information about Debian Security Advisories, how to applythese updates to your system and frequently asked questions can befound at: http://www.debian.org/security/